Igusa–Liu–Paquette extension conjecture

Let SS be a simple module over an artin algebra. Igusa–Liu–Paquette extension conjecture. If

Ext1(S,S)0,\operatorname{Ext}^1(S,S)\neq 0,

then

Exti(S,S)0\operatorname{Ext}^i(S,S)\neq 0

for infinitely many integers ii. This is presented as a stronger statement related to the Strong No Loop Conjecture; the source attributes it to K. Igusa, S. Liu, and C. Paquette and does not state that it has been resolved.

Sources & referencesView supporting material

Primary source

Kosmas Diveris and Marju Purin, “Vanishing of self-extensions over symmetric algebras”, arXiv:1309.1088 (2013).

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